Erhu (Chinese Violin) is the most important country musical bowed strings instrument and folk instrument around the country. Erhu consists of two strings bows , bottom bracket and the sound box. The sound box side usually covered with python skin and with a small rope bang together to improve the erhu timbre. Erhu is by vibrations of the strings passed to the Bridge, by shaking piano yards , passed to the piano tone barrel window aloud. Erhu sound sad, strong performance capabilities, usually used to play some momentum huge , sad music.